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Manufacturers
- 3M
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- Nomaco K-Flex
- Paloma
- Peter Mangone
- Petrometer
- Price Pfister
- Qmark
- Ranco
- Rheem
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- Taco
- Takagi
- Tekmar
- ThermaPEX
- Tomlinson
- Triangle Tube
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- Uponor (Wirsbo)
- Varivalve
- Viega
- Viessmann
- Wal-rich
- Ward
- Watts
- WD-40
- Webstone
- Weil Mclain
- White Rodgers
- Z-FLEX
- Zurn