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The JB PRODUCTS JB300 is a cast brass strainer fitted with a stainless steel basket, designed to protect downstream plumbing and mechanical equipment from debris carried in the water supply. The cast brass body provides corrosion resistance and durability under typical service conditions, while the stainless steel basket insert holds up to repeated cleaning without deforming or corroding. This type of strainer is a standard component in plumbing, HVAC hydronic, and light commercial water systems where sediment control is required to protect valves, pumps, and other sensitive components.
The JB300 is suited for residential and light commercial plumbing installations where line straining is needed ahead of equipment such as circulator pumps, pressure-reducing valves, water meters, or backflow preventers. It is installed in-line by a licensed plumber or pipefitter as part of routine system protection during new construction or retrofits. The cast brass construction makes it compatible with copper, brass, and other standard potable water piping systems.
Designed as an OEM-style replacement or new-installation strainer for residential and light commercial plumbing and hydronic systems requiring in-line debris filtration.
Installation should be performed by a licensed plumber in accordance with applicable IPC or local plumbing code requirements. Shut off the water supply and relieve system pressure completely before cutting into any existing line. The strainer basket access cover should be oriented for serviceability so the basket can be removed and cleaned without disrupting the piping run. Do not overtighten threaded connections on brass fittings; use appropriate thread sealant per code.
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