Check the listing for details. for Paramount 004-302-4406-00 4 Port Gear Module Water Valve Shell O-Ring. Color: Black, Condition: New. Listed at 158.40 USD. for Paramount 004-302-4406-00 4 Port Gear Module Water Valve Shell O-RingFitment:4-Port Gear Module fit for Paramount Water Valve. (part number: 004-302-4406-00) Features: 1) Select high-quality materials, carefully process, and manufacture according to the highest standards, just to provide you with quality products 2) Reduce chemical costs and power consumption by up to 30%, eliminate the need for vacuums and unsightly hoses, reduce heating costs, and improve circulation 3) How to open the water valve : (1) Turn off all equipment, including pumps. (2) Turn the clamp knob or nut until it disengages from the bolt, then carefully remove the band clamp. (3) Lift the top off the base. (4) Lift the module up and out of the base 4) Module installation (4 ports) : (1) Check the O-ring and groove for debris, and clean if necessary. (2) If the О-ring is stretched or damaged, replace it. О-rings do not require any lubrication, lubricated О-rings attract dirt and debris that can interfere with the seal. (3) Put the module into the base and turn it until the positioning pin on the bottom of the module falls into the positioning hole of the base Package included: 4-Port Module with Valve Shell Oring