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The VALUE COLLECTION 6SQ3/4 is a 3/4-inch square head pipe plug machined from 316 stainless steel, designed to close off threaded pipe ends and fittings in fluid, gas, and plumbing systems. The male NPT thread provides a secure, leak-resistant seal when installed into a female-threaded port or pipe end. Rated to 150 psi, this plug is suited for low- to moderate-pressure applications where corrosion resistance is a priority. Licensed plumbers, pipefitters, and mechanical contractors install this type of fitting during system installation, maintenance, or pressure testing when a port needs to be capped off cleanly.
This square head plug is used in residential and light commercial plumbing, hydronic, and process piping systems. The square drive head allows installation with a wrench or socket without requiring a specialty tool. The 316 stainless steel construction makes it appropriate for mildly corrosive environments, including marine-adjacent applications, chemical lines, and food-service-adjacent piping where standard carbon steel or brass fittings may not be suitable.
Designed as an OEM-style replacement or new-installation fitting for 3/4-inch female NPT threaded ports in pipe, valves, manifolds, and equipment housings requiring a threaded plug closure.
Installation is typically performed by a licensed plumber or pipefitter. Depressurize and drain the affected line or system before installing or removing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads before installation, following IPC and IFGC guidelines for the fluid or gas being conveyed. Do not overtighten; use a wrench to bring the plug to snug contact and confirm sealing without damaging the threads.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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