Amazon.com: 1/2 inch float valve, the water level control box is an upgraded version of the traditional float valve, used in swimming pools, livestock tanks, aquaculture, aquariums (1/2 inch float valve(n-15)) :
Amazon.com: Rainbow Dream 1/2 Inch PVC Female Adapter Pipe Fitting (Socket x Female Pipe Thread) - 15 Pack, White : Industrial & Scientific
Amazon.com: 3/8" ID 1/2" OD Clear Vinyl Tubing – 10 Feet, 60 PSI, Flexible Plastic Tubing, BPA Free and Non-Toxic, Multipurpose Soft Tube Comes with 2 Hose Clamps : Industrial & Scientific
Amazon.com: Aviditi White Mailing Tubes with Caps, 3" x 26", Pack of 24, for Shipping, Storing, Mailing, and Protecting Documents, Blueprints and Posters : Office Products
Amazon.com: Aviditi White Mailing Tubes with Caps, 3" x 20", Pack of 24, for Shipping, Storing, Mailing, and Protecting Documents, Blueprints and Posters : Office Products
uxcell PVC Clear Vinyl Tubing, 8mm(5/16") x 11mm Plastic Tube Flexible Water Pipe 3.3ft - Amazon.com
Amazon.com: Ultima 74200 Flexible Hose : Industrial & Scientific
Neorexon Liquid-Tight Conduit 100 ft and 10 Pieces of Connector Kit, Electrical Conduit 3/4 100ft, Flexible Conduit with 5 Straight and 5 90-Degree Conduit Connector Fittings - Amazon.com
1/4" I.D. x 3/8" O.D. PVC Vinyl Tubing - 10 feet: Other Products: Amazon.com: Industrial & Scientific
Amazon.com : Sealproof Flexible PVC Pipe 2 Inch Dia Hose 25 FT Length, Black Tubing, Schedule 40, Premium Quality Made in USA : Tools & Home Improvement
Polycarbonate Tubing, 1 3/4" ID x 2" OD x 1/8" Wall, Clear Color 36" L: Industrial Plastic Tubing: Amazon.com: Industrial & Scientific