Blue Thumb Check Valve Kit 1.5" & 2" Asynchronous 000 gallons for 16 months

000 gallons for 16 months BMC1G4 097121201355 128oz (Gallon) Bulk/Refill Size

No harmful fumes

An upgrade to a 6' 6" spoke welded wheel is an available option on windmills under 33' for a slightly better wind speed

Perfect for use in biological filters

Blue Thumb Check Valve Kit 1.5" & 2" Asynchronous 000 gallons for 16 monthsCheck Valve Kits With these kits you can make a Check Valve Discharge Assembly for nearly any submersible pump on the market to work with the Blue Thumb Skimmers or Pump Canyons. Choose the size based on the size flex hose you are installing. SKU Description Recommended Use PB2408 1. 5" Check Valve Assembly Kit Blue Thumb Skimmers or Pump Canyons PB2415 2" Check Valve Assembly Kit Blue Thumb Skimmers or Pump Canyons