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The Peerless 99788 is a 3/8 - 16 x 3/4 hex head cap designed specifically for Peerless boilers. This part is essential for maintaining the efficiency of various heating systems.
The hex head cap serves as a vital component in boiler maintenance, ensuring tight seals to prevent leaks.
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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