Swimming Pool Pump Cartridge Filter Spanner Key Wrench Two Types 38mm

Small spanner to undo / tighten the plastic nuts on small cartridge filter pumps usually supplied or used with small above ground swimming pools . Has the two popular types of 38mm ends. Don't over tighten as the plastic may cross thread or break. Great for if you have wet hands or struggle to use the existing nut. Made of tough durable plastic. Spanner ONLY, pump or filter NOT included.