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  • Home
  • Aeration Equipment
  • Automatic Fish Feeders
  • Aquarium Life Support Equipment and Supplies
  • Cleaning Equipment and Supplies
  • Filtration
  • Fish Medications
  • Food Supplements/ Bacteria
  • In-Field Supplies and Equipment
  • Nets
  • Other
  • Plumbing
  • Pond and Lake Filtration Equipment
  • Fish Graders (Minnow Saver)
  • Pumps
  • Scales
  • Tanks
  • Test Kits & Equipment
  • Salt Mix and Water Conditioners

    • Shop by Brand

  • Lifegard Aquatics
  • Lamotte Company
  • Aqua Ultraviolet
  • YSI, A Xylem Brand
  • Reef Brite
  • Bashsea
  • The Power House, Inc
  • Aqua Logic, Inc
  • Aquatic Solutions
  • RK2 Systems
  • Milwaukee Instrument
  • Aquadyne Filtration Systems
  • Hayward Industrial
  • Poly Tank
  • Emperor Aquatics UV
  • Filter Specialists
  • Fiap
  • Sweetwater
  • Danner Supreme
  • Blueline Pumps
  • Delta Electrapro UV
  • Teco Chillers
  • Watts
  • Performance Pro
  • Reed Mariculture
  • Atlantic Blowers
  • Alita
  • BubbleMac
  • Minnow Saver
  • XFLO BY RK2 SYSTEMS
  • Delta Ultraviolet Sterilizers
  • ShinMaywa
  • American Marine
  • Medo
  • Oakton
  • Perfect Climate
  • Syndel (Western Chemical
  • The Power House
  • Tsurumi Pumps
  • Valterra
  • Alconox
  • FSI
  • Lasco
  • Marine Enterprises
  • X Flo by RK2 Systems
  • Aquaculture Systems Technologies
  • Colorite
  • Dream Ponds
  • Electro
  • Environmental Dynamics International
  • Georg Fisher Signet
  • Hakko
  • Hydor
  • Midwest Instrument
  • Ohaus
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    • Check Valves

    Some times water going to the wrong place is not a good thing! Need to control water flow direction? Let us know your application and will find the right Check Valve to suit your needs.

    • 1" PVC Swing Check Valve
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      1" PVC Spring Check Valve - Socket

      1" PVC Spring Check valves are used to prevent back-flow and siphoning. The 2 lb. SS spring maintains a positive seal even when no back pressure is present. Suggest applications: pool/spa, irrigation and commercial water systems. A 2 psi minimum flow...

      $10.45
      Add to Cart
    • 1" PVC Swing Check Valve Threaded
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      1" PVC Spring Check Valve - Threaded

      1" PVC Spring Check valves are used to prevent back-flow and siphoning. The 2 lb. SS spring maintains a positive seal even when no back pressure is present. Suggest applications: pool/spa, irrigation and commercial water systems. A 2 psi minimum flow...

      $10.45
      Add to Cart
    • Spears 1" Clear PVC True Union Swing Check Valve
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      1" True Union Clear Swing Check Valve Slip X Slip

      This one inch clear PVC true union ball check valve is designed for lon-lasting use. Unique cup shaped ball keeps it from spinning and creating leaks down the road. Check out the specs and get a truly well-built valve with this clear PVC model. Size:...

      $24.19
      Add to Cart
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