Shower Head Washers — Flat Rubber Washers for Shower Arms

Shower head washers stop leaks where the shower head meets the arm. A standard US shower arm uses 1/2" NPT threading, sealed by a flat rubber washer approximately 3/4" OD with a 1/2" center hole — the sizes in this collection. If your shower head drips from the connection (not the spray face), the washer inside the swivel nut has flattened or cracked. Unscrew the head, swap the washer, hand-tighten back on — no tools required for most heads. Choose silicone or EPDM for the best hot-water life. Measure your old washer to confirm the size, and note that orders over $9.95 ship free.