Water Filter Housing Accessories & Replacement Parts

Our collection includes replacement O-rings, filter housing spanners, mounting brackets, pressure gauges, pressure release buttons and cartridge locating accessories from recognised manufacturers, including Aquafilter, Pentair and Prism.

Whether you're replacing a worn housing seal, installing a new filtration assembly or carrying out routine filter maintenance, our selection of water filter housing spare parts helps keep your filtration equipment in good working condition.


  • O-Ring for Big Blue 10" and 20" Housing Accessory Aquafilter

    Aquafilter O-Ring for Big Blue 10" and 20"

    O-ring (top) for HB1B, HB1D, HB1C, HB2B, HB2D, HB2C (blue cap, blue sump) series housings (BB type).

    €3,95

  • Aquafilter OR-H10-1 O-ring Housing Accessory Aquafilter

    Aquafilter Aquafilter OR-H10-1 O-rings for Filter Housings

    Aquafilter OR-H10-1 set bottom (blue) and top (black ) O-rings for filter housing: Top O-ring for filter housing: H10A, H10B, H10B-AB, H10C, H10D, H10K, H105.

    €2,95

  • Aquafilter NI-212-CENT-GR-AB bacteriostatic centering ring - GroAqua

    Aquafilter Aquafilter NI-212-CENT-GR-AB bacteriostatic centering ring

    Aquafilter NI-212-CENT-GR-AB antibacterial filter cartridge centralizing ring.This product centralizes the filter cartridge inside its housing, reduces the risk of damage to the cartridge and housing elements at installation, and ensures seal tightness of the housing head - all while protecting your filter from bacteria and other microorganisms, thanks to new nanosilver technology.Features: Competitive Pricing Improves ease of cartridge installation Increases ease of correct installation Ensures proper vertical position of cartridge within housing Stabilizes and centralizes cartridge for equal water distribution Removes risk of bacteria BACINIX nanosilver technology, providing antibacterial and antimicrobial protection Centralizers inhibit harmful growth of bacteria, fungi and molds by using nanosilver BACINIX technology Reduces risk of dislodging cartridge Protects cartridge from faults due to poor positioning Facilitates consistently correct cartridge installation Made in the EU with High Quality materials

    €0,95

  • Last stock! Pressure gauge - 1/4" NPT Housing Accessory Aquafilter

    Aquafilter Pressure gauge - 1/4" NPT

    Pressure gauge - 1/4" NPT.

    €5,95

  • Last stock! Aquafilter KCGA-1-E2 brass extension Housing Accessory Aquafilter

    Aquafilter Aquafilter KCGA-1-E2 brass extension

    Aquafilter brass extension for KCGA-1 pressure gauge. Allows proper installation of the pressure gauge on H10C, HB1B, HB1D, HB1C, HB2B, HB2D, HB2C, H105 series housing.

    €3,95

  • Aquafilter FXWR1BB-BL housing wrench Housing Accessory Aquafilter

    Aquafilter Aquafilter FXWR1BB-BL housing wrench

    Aquafilter FXWR1BB-BL housing wrench . Wrench for BB type housings with blue sump: HB1B, HB1D, HB1C, HB2B, HB2D, HB2C series manufactured in EU.

    €9,95

  • SW2 PENTAIR Spanner for NO10 & NO20 Housings - GroAqua

    Pentair SW2 PENTAIR Spanner for NO10 & NO20 Housings

    Spanners are highly recommended in aiding the removal of any housing bowl from its head, safely and without damage.

    €13,95

  • Last stock! Pentair Single "L" Bracket for No.10 and 20 Housings - GroAqua

    Pentair Pentair Single "L" Bracket for No.10 and 20 Housings

    Filter housing brackets allow for housings to be attached in a fixed location which facilitates easy installation, maintenance and on-going filter change. Double and Triple brackets offer the solution for multiple housing connections. Bracket kits include appropriate screws for quick installation.

    €17,95

  • O-ring for H20A,H102,H20H series housings. Housing Accessory Aquafilter

    Aquafilter O-ring for H20A,H102,H20H series housings.

    O-ring for H20A,H102,H20H series housings.

    €2,95

  • Last stock! Pentair SW3 10" Large Diameter Housing Spanner 150296 - GroAqua

    Pentair Pentair SW3 10" Large Diameter Housing Spanner 150296

    Spanners are highly recommended in aiding the removal of any housing bowl from its head, safely and without damage.

    €20,95

  • Pentair SW4 20" Large Diameter Housing Spanner SH144368 - GroAqua

    Pentair Pentair SW4 20" Large Diameter Housing Spanner SH144368

    Spanners are highly recommended in aiding the removal of any housing bowl from its head, safely and without damage.

    €20,95

  • Pentair Pressure Release Button Kit - GroAqua

    Pentair Pentair Pressure Release Button Kit PRBUTTON

    Simplify the upkeep of your water filtration system with the PRBUTTON: PENTAIR Pressure Release Button Kit, an essential spare part designed for seamless compatibility with Pentair 2G housings. This pressure release button plays a crucial role in maintaining system performance and ensuring safe, hassle-free filter maintenance. Key Features & Benefits Perfect Compatibility: Specifically designed as a spare part for Pentair 2G housings, ensuring an exact fit for reliable performance. Pressure Management: The pressure release button allows you to safely release pressure within the housing, making filter changes quick and stress-free. Ease of Use: Simple to install and operate, it’s a practical addition for both routine maintenance and unexpected repairs. System Protection: Helps maintain the integrity of your filtration system, extending its lifespan by promoting safe maintenance practices. The PRBUTTON: PENTAIR Pressure Release Button Kit is a small yet vital component that supports the efficiency and longevity of your water filter housing.

    €7,95

  • Wrench for three-part housings Housing Accessory Aquafilter

    Aquafilter Wrench for three-part housings

    Wrench for three-part housings (H05A, H10G, H101 new type housings manufactured in EU).

    €2,95

  • PRISM Single Wall Bracket for 10" & 20 (FHA-BRACKET) - GroAqua

    Prism PRISM Single Wall Bracket for 10" & 20 (FHA-BRACKET)

    Filter housing brackets allow for housings to be attached in a fixed location which facilitates easy installation, maintenance and on-going filter change. Double and Triple brackets offer the solution for multiple housing connections. Bracket kits include appropriate screws for quick installation.

    €6,95

  • PENTAIR 3G Pressure Release Button Kit Filter Housing Accessory Pentair

    Pentair PENTAIR 3G Pressure Release Button Kit

    Pressure release buttons on housings can be replaced if and when required, select the kit according to your housing.

    €6,95

  • PENTAIR Pressure Release Button Kit Filter Housing Accessory Pentair

    Pentair PENTAIR Pressure Release Button Kit

    Pressure release buttons on housings can be replaced if and when required, select the kit according to your housing.

    €6,95

  • PRISM Single Wall Bracket for 10" & 20" Large Diameter (FHA - BRACKET) - GroAqua

    Prism PRISM Single Wall Bracket for 10" & 20" Large Diameter (FHA-BRACKET)

    Filter housing brackets allow for housings to be attached in a fixed location which facilitates easy installation, maintenance and on-going filter change. Double and Triple brackets offer the solution for multiple housing connections. Bracket kits include appropriate screws for quick installation.

    €19,95

  • PENTAIR 2 Colour Gauge for 3G Housing Filter Housing Accessory Pentair

    Pentair PENTAIR 2 Colour Gauge for 3G Housing

    Pressure gauges are an essential addition to any housing system by eliminating any guesswork for filter changeouts, maximising filter cartridge life and optimising system performance. Available in various thread sizes and orientations plus further technical options with differing maximum pressure ratings and features to suit more challenging applications.

    €150,95

  • PENTAIR 2 Colour Gauge for 3G Housing Filter Housing Accessory Pentair

    Pentair 2 Colour Gauge for PENTAIR 3G Housing

    High-Quality Construction PENTAIR 2 Colour Gauge for 3G Housing is constructed with premium materials for durability and longevity. The gauge features a sturdy design that can withstand harsh conditions, making it a reliable option for various applications. Its precision engineering ensures accurate readings, providing you with the information you need to monitor your system effectively. Dual Colour Indicators This gauge is equipped with dual colour indicators that offer clear visual cues for easy monitoring. The user-friendly design allows you to quickly assess the status of your system at a glance. With this feature, you can easily identify any issues or potential concerns, allowing you to address them promptly and prevent downtime. Easy Installation Installing the PENTAIR 2 Colour Gauge for 3G Housing is quick and hassle-free, saving you time and effort. The gauge is designed for simple installation, making it suitable for both professionals and DIY enthusiasts. Whether you're replacing an existing gauge or upgrading your system, this product is a convenient and practical solution for your needs.

    €57,95

  • Last stock! Pentair SW1 Slimline Housing Spanner - GroAqua

    Pentair Pentair SW1 Slimline Housing Spanner

    Make water filter maintenance effortless with the Pentair SW1 Slimline Housing Spanner, the ideal tool for ensuring smooth installation and removal of your Pentair Slimline 2G and 3G housings. Designed with durability and ease of use in mind, this spanner is a must-have for homeowners looking to keep their filtration systems in top condition. Key Features & Benefits Perfect Compatibility: Specially crafted for Pentair Slimline 2G and 3G housings, ensuring a precise fit every time. Built to Last: Made with high-quality materials, this durable spanner can handle repeated use without bending or breaking. Effortless Operation: The ergonomic design offers a secure grip, making it easy to tighten or loosen filter housings without the hassle. Time-Saving Tool: Simplifies maintenance tasks, allowing you to focus on enjoying cleaner, healthier water without delays. Whether you're performing routine filter changes or tackling unexpected maintenance, the Pentair SW1 Slimline Housing Spanner is the ultimate water filter maintenance tool. Its sturdy construction and user-friendly design make it a reliable partner for ensuring your filtration system runs smoothly.

    €13,95

Find everything you need to maintain, repair and optimise your water filtration system with GroAqua's range of water filter housing accessories and replacement parts. We supply essential components designed to support the installation, maintenance and reliable operation of domestic, commercial and industrial water filtration equipment.

Our collection includes replacement O-rings, filter housing spanners, mounting brackets, pressure gauges, pressure release buttons and cartridge locating accessories from recognised manufacturers, including Aquafilter, Pentair and Prism.

Whether you're replacing a worn housing seal, installing a new filtration assembly or carrying out routine filter maintenance, our selection of water filter housing spare parts helps keep your filtration equipment in good working condition.

Explore Our Range of Water Filter Housing Accessories

Replacement O-Rings and Housing Seals

O-rings provide an essential watertight seal between the filter housing head and sump, helping prevent leaks during operation. We offer replacement O-rings for compatible standard and Big Blue filter housings, allowing you to maintain a secure seal when servicing your filtration equipment.

Filter Housing Spanners and Wrenches

Filter housing spanners are designed to help loosen and tighten housing bowls during cartridge replacement and routine maintenance. Using the correct housing wrench helps simplify servicing and reduces the risk of damaging the housing during removal.

Our range includes spanners for compatible 10-inch, 20-inch and Big Blue filter housings.

Water Filter Housing Mounting Brackets

Mounting brackets provide secure support for water filter housings and multi-stage filtration assemblies. Available in different configurations, including single, double and triple brackets, they help simplify installation and keep filtration equipment securely positioned.

Pressure Gauges and Gauge Accessories

Pressure gauges allow users to monitor pressure within compatible water filtration systems. They can help identify pressure changes associated with filter blockage, restricted flow or other operating conditions.

We also supply compatible gauge extensions and installation accessories for selected filter housing models.

Pressure Release Buttons and Kits

Pressure release buttons allow trapped pressure to be released from compatible filter housings before maintenance or cartridge replacement. These components help make routine servicing safer and more convenient when used in accordance with the manufacturer's instructions.

Filter Cartridge Centring and Locating Rings

Cartridge centring rings help position filter cartridges correctly inside compatible housings. Proper positioning supports correct cartridge installation, helps maintain alignment and reduces the risk of incorrect seating during assembly.

Compatible Accessories for Leading Filter Housing Brands

GroAqua stocks water filter housing accessories from established filtration manufacturers, including:

  • Aquafilter: Replacement O-rings, Big Blue housing spanners, cartridge centring rings and pressure gauge accessories.

  • Pentair: Housing spanners, mounting brackets and pressure release components for compatible filter housings.

  • Prism: Selected water filtration accessories and replacement components.

Always check the product specifications and compatibility information before ordering replacement parts to ensure they are suitable for your particular housing model.

Applications of Water Filter Housing Accessories

Our filter housing spare parts and accessories are suitable for maintaining a wide range of filtration installations, including:

  • Domestic drinking water filtration systems.

  • Under-sink water filtration units.

  • Whole-house water filtration systems.

  • 10-inch and 20-inch cartridge filter housings.

  • Big Blue water filter housings.

  • Commercial water treatment installations.

  • Industrial water filtration systems.

  • Multi-stage filtration assemblies.

  • Reverse osmosis pre-filtration systems.

Using compatible replacement components helps maintain the integrity of your filtration installation and supports straightforward routine maintenance.

Why Choose GroAqua for Filter Housing Spare Parts?

At GroAqua, we understand the importance of having the correct replacement components to maintain your water filtration equipment.

  • Selection of water filter housing accessories and spare parts.

  • Replacement O-rings and housing seals.

  • Filter housing spanners and maintenance tools.

  • Single, double and triple mounting brackets.

  • Pressure gauges and pressure release components.

  • Cartridge centring and locating accessories.

  • Products from recognised manufacturers, including Aquafilter and Pentair.

  • Solutions for domestic, commercial and industrial filtration systems.

Shop Water Filter Housing Accessories at GroAqua

Whether you need a replacement O-ring, a housing spanner for routine cartridge changes, a mounting bracket for a new installation or a pressure gauge for monitoring your filtration system, explore the GroAqua collection to find the right accessory.

Browse our range of water filter housing accessories and replacement parts to keep your water filtration equipment properly maintained.

Need help identifying a compatible spare part? Contact the GroAqua team with your filter housing model or product reference, and we'll help you find the appropriate replacement component.

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