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Full-Port Valves for Gravity-Fed Tanks/Cisterns - Rainwater Harvesting for Drylands and Beyond by Brad Lancaster
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Amazon.com: Megairon 2Pcs 316 Stainless Steel 1.5" Full Port Ball Valve with Heavy Duty Blue Vinyl Insulation Handle, NPT Female x Female Thread,1000 WOG : Industrial & Scientific
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