EC65 Flex-Tube Nest filter-internal-diameter_4 3/16 inches This is a Center Height

This is a Center Height Outlet

SPST latching spa air switch that mounts in a 5/16 inch hole

the position of the Rubber Channels will be off by about 5

This is a paddlewheel type insertion flow sensor

The Pentair EQ Series EQWK-500 Plastic Waterfall Pump Without Strainer is 5 HP

EC65 Flex-Tube Nest filter-internal-diameter_4 3/16 inches This is a Center HeightThis is a Hayward Flex Tube Nest for Perflex EC65 Extended Cycle DE Filters. This item includes: Tube Sheet Screw, No. 10 Flat Washer, Bump Shaft, O Ring, Retainer, Thrust Washer, Shaft Kit, Tube Sheet, Diaphragm Gasket, Tube Sheet, Tube Sheet Nut and Flex Tube Assembly.