New! FDM’s Dry Fit NO GLUE Coupler

The best connection to connect 4″ corrugated pipe to any 4″ smooth wall PVC pipe.  Made out of HDPE – the strongest material on the planet, yet flexible enough for underground buried downspouts. Made in the USA.

Easy Installation!
Made out of HDPE – the strongest material on the planet, yet flexible for buried downspouts. Made in the USA.

Fittings & Couplers

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