Box contents - 2 x professional shut-off valves - 6 x universal stainless steel hose clamps - fits standard pools with 32 mm hose connections Easy maintenance - Our stopcock makes maintenance and service work on your pool or filter system easier by enabling quick isolation of sections. High quality materials - Made of durable plastic designed for pool use, withstanding water and weather for a long service life. Function and compatibility - Suitable for standard pools with 32 mm hose connections; includes universal hose clamps for a secure fit. Important safety note - Do not use as a replacement for sealing plugs if you have not connected a filter system to the pool. Small drip quantities possible. Use scenarios - Isolating the filter/pump for routine maintenance or component replacement. - Replacing or cleaning pool hoses or sections of the plumbing. - Winterization or seasonal shutdown by temporarily closing the water flow.