Shop Rectorseal at BPS Supply Group. Our online selection includes pipe thread sealant, gas leak locators, lubricants and more. RectorSeal is a reputable brand specializing in innovative HVAC, plumbing, and electrical products. Their top-selling products include No. 5 Pipe Thread Sealant, designed to create leak-free connections in plumbing and gas lines, as well as Kickstart Hard Start Kit, a unique HVAC solution that assists air conditioning units during startup, increasing efficiency and prolonging equipment life. These products are trusted by professionals for their reliability, ease of use, and superior performance, making RectorSeal a go-to choice for contractors and homeowners alike.