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1/2" ID X 1" OD – QuickSink Weighted PVC Airline
Accessories, TubingQuick Sink weighted PVC airline is the perfect choice for diffused aeration systems. The thick wall helps it sink to the bottom of the pond even when filled with air. Multiple diameter tubing is available to meet a variety of aeration needs.Price range: $1.99 through $791.19 -

2WAY1 Two-way air splitter 3/8" x 3/8" (for rocking piston compressors)
Accessories, MiscellaneousThis two-way air splitter will divide air from a single incoming line into two outgoing lines with air flow controlled by included valves.$50.34 -

2WAY2 Two-way air splitter 1/2" x 1/2"
Accessories, MiscellaneousThis two-way air splitter will divide air from a single incoming line into two outgoing lines with air flow controlled by included valves. Ideal for rotary vane, windmills, or linear compressors. Set up for 1/2" ID tubing inlet and outlet.$50.34 -

3/8" ID X .687" OD – QuickSink Weighted PVC Airline
Accessories, TubingQuickSink Weighted PVC Airline is the perfect choice for diffused aeration systems. The thick wall helps it sink to the bottom of the pond even when filled with air. Multiple diameter tubing is available to meet a variety of aeration needs.Price range: $1.39 through $459.99 -

5/8" ID X 1.12" OD – QuickSink Weighted PVC Airline
Accessories, TubingQuick Sink weighted PVC airline is the perfect choice for diffused aeration systems. The thick wall helps it sink to the bottom of the pond even when filled with air. Multiple diameter tubing is available to meet a variety of aeration needs.Price range: $2.39 through $846.39 -

DMBR Landscape Boulder (Brown) 19" x 14" x 12" high
Accessories, Enclosures & CabinetsThese Mock Rock™ Boulders are ideal for concealing air pumps, water pumps, pond filters, UVs, lighting transformers and other equipment.$98.39