Description
Premium stainless steel plug designed to seal 1/8" MPT (Male Pipe Thread) openings commonly located on spa heater tubes. This threaded plug fits holes approximately 3/8" in diameter - the same dimension as standard pressure switch openings found in hot tub heating systems. Constructed from durable stainless steel for corrosion resistance and long-lasting performance. Installation requires teflon pipe tape for proper sealing. Perfect for blocking unused 1/8" MPT threaded ports on your hot tub heater assembly.
