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  • New for 2024
  • Air Pumps and Accessories
  • Aquatic Plant Care
  • Artificial Rocks
  • Aquariums
  • Bottom Drains
  • Cleaning Equipment
  • Filter Media and Bags
  • Filter Systems
  • Fire Pits
  • Fish Food and Feeders
  • Fish Health
  • Fish Holding and Measuring Tanks
  • Fish Nets and Cages
  • Fountains and Basins
  • Fountains and Nozzles
  • Heaters and De-Icers
  • Lake Management
  • Landscape Lighting
  • Plumbing and Auto-Fills
  • Pond Decorations
  • Pondless Kits and Parts
  • Pond Kits
  • Pond Lighting and Electronics
  • Pond Liner and Sealants
  • Pond Netting & Stakes
  • Predator and Pest Control
  • Pump Accessories
  • Pumps - External
  • Pumps - Submersible
  • Seasonal Products
  • Skimmers for Ponds
  • Ultraviolet Clarifiers
  • Water Testing
  • Water Treatments
  • Waterfall Filters
  • Waterfall Spillways and Basins
  • Gifts and Collectibles
  • Shop All

    • Shop by Brand

  • Aquascape
  • EasyPro
  • Atlantic
  • Matala
  • Blue Thumb
  • Lifegard Aquatics
  • Alliance
  • Anjon
  • Outdoor Water Solutions
  • Microbe-Lift
  • View all Brands

    • Check Valves

    Check Valves limit the flow of water to one direction. This prevents water from flowing backwards or backing up into your pump or filter. Priming pumps is much easier if a check valve is installed on the intake side of the pump.These are full flow type valves with no springs or flow restrictions.

    • 3" PVC Check Valve - Slip

      sku: SCV30

      3" PVC Check Valve - Slip

      3" PVC Check Valve - Slip  These install near your skimmer or filter, so if the pump is turned off, it will not back-siphon and dry up. Also used to help with priming an external pump. Used on the intake to keep water in the pipe...

      $82.47
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