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The MIDLAND INDUSTRIES 55309 is a Schedule 40 PVC compression coupling designed for joining two 2-1/2 inch lines using a compression connection on both ends. It is used in pressurized and drain plumbing systems where a solvent-free mechanical connection is required. The fitting is constructed from PVC, making it resistant to corrosion and compatible with a wide range of water and fluid applications. Licensed plumbers and pipe fitters install this coupling during new construction, repair, or retrofit work where access to both pipe ends is available. The all-compression design allows for field assembly without primers or cement, reducing installation time and eliminating cure time before pressurizing the line.
This coupling is suited for residential and light commercial plumbing applications using Schedule 40 PVC pipe. It is commonly installed in water supply lines, irrigation systems, and other low-pressure fluid distribution runs where PVC is the specified material. The compression-to-compression configuration makes it a practical choice for in-line repairs and extensions where heat or solvent bonding is not practical or permitted.
Designed as an OEM-style replacement and standard fitting for Schedule 40 PVC compression plumbing systems using 2-1/2 inch pipe.
Installation should be performed by a licensed plumber in accordance with applicable IPC or local plumbing code requirements. Shut off and depressurize the water supply before cutting into any existing line. Ensure pipe ends are cut square and deburred before seating into the compression fitting to achieve a proper seal. Do not overtighten compression nuts, as PVC fittings can crack under excessive torque.
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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