This trap cover is designed to use with Pentair Sta-Rite Max-E-Glas II, Dura-Glas II series up-rate and full rate pool/spa inground pumps. Also fits Dyna-Glas/Dyna-Max Series, Dyna-Pro/Dyna-Pro E pool and spa pumps. Product is also compatible with Dyna-Wave Series pool pump. Measures 7-1/4-inch length by 7-1/4-inch width by 3-1/2-inch height.