High-quality material: The pool parts are made of high-quality plastic, sturdy and durable. The rubber ring is firmly connected to the 1.25-inch hose, forming a sealed space that prevents water leakage. Easy to install: The hose adapter is used to connect a 1.25-inch hose to a plunger valve or filter pump. The small end connects to a 1.25-inch hose. The threaded end connects to a 1.5-inch plunger valve or filter pump; simply screw it on. Compatible: Fits all 4000, 2500, 2000, and 1500 gallons/hour filter pumps with threaded connections. 2-pack: 2 pieces 32 mm & 38 mm replacement hose adapters with union nuts for 2 threaded pumps