Description
Aqua Medic Ro Membrane Housing Wrench — Plastic spanner for opening 10-inch RO membrane housing end caps
A membrane housing cap that has sat sealed for a year or two does not want to turn by hand, and gripping it with pliers tends to crack the plastic before it loosens. Aqua Medic Ro Membrane Housing Wrench (SKU: AM700257) is Aqua Medic’s purpose-made plastic spanner for opening and closing the end cap of a 10-inch RO membrane or prefilter housing, listed by the maker as item U700.25-7 and supplied as the housing tool with the Easy Line Pro range. Its lugs fit the notches moulded into the Aqua Medic housing cap, giving enough leverage to break a stuck seal or nip a new one up firmly, without the slipping or marking that a general-purpose wrench or pliers would cause on the same plastic.
It is the tool for the moment a membrane or a sediment and carbon prefilter needs changing: Aqua Medic documents it specifically alongside the Easy Line Pro 100, 150 and 200, where it is used to remove the housing cap before lifting out the old membrane and to reseat it once the replacement, such as the Ro Membrane 400L/100GPD, 600L/150GPD or 200GPD (SKU AM711100, AM711150, AM711200), is in place. Because the cap and lug pattern is the same design Aqua Medic uses across its 10-inch RO housings, the wrench is a handy thing to keep on the shelf whenever a prefilter cartridge or a membrane on any of these units needs attention, not only at the point a specific model’s manual calls for it. Being plastic rather than metal, it will not mar the housing threads or scratch the cap, and it takes up almost no space in a maintenance kit.
Usage & Application
When to Use
- Replacing an RO membrane: Opening the housing cap to lift out the old membrane.
- Stuck or overtightened caps: Breaking a seal that will not turn by hand.
- Routine prefilter changes: Opening sediment or carbon housings at service time.
- General RO maintenance: A tool worth keeping with any Aqua Medic 10-inch RO unit.
How to Use
- Isolate the unit: Shut off the water supply and release the housing’s pressure first.
- Engage the lugs: Fit the wrench’s lugs into the notches on the housing cap.
- Turn to loosen: Apply steady turning force rather than a sharp jerk.
- Hand-tighten on refitting: Close the new cap by hand and nip it with the wrench only if needed.
Product Specifications & Highlights
Key Features
- Purpose-made fit: Lugs matched to the Aqua Medic housing cap notches.
- Plastic construction: Will not mar or scratch the housing.
- Listed with the ELP range: Aqua Medic’s housing tool, item U700.25-7.
- Compact and reusable: A small tool kept for every membrane or prefilter change.
- Breaks stuck seals: Enough leverage for a cap that will not turn by hand.
Product Details
- Brand: Aqua Medic (Germany)
- SKU: AM700257
- Barcode (GTIN/EAN): 4025901117417
- Product Type: Maintenance > RO Membrane Housing Wrench
- Manufacturer Item: U700.25-7
- Material: Plastic
- Fits: Aqua Medic Easy Line Pro 100, 150 and 200 10-inch housings; the same cap design is used on Aqua Medic’s other 10-inch RO housings
- Use: Opening and closing membrane and prefilter housing end caps
- Companion Products: Aqua Medic Ro Membrane 400L/100GPD, 600L/150GPD and 200GPD (SKU AM711100, AM711150, AM711200)
- Target Environment: Reverse osmosis systems for freshwater and marine aquarium water production


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