All Erva pot rings were developed to fit Pennington Brand clay pots perfectly. An 8" Penningtion Pot fits perfectly into the PR8SDC 7.5" actual exact Inside Diameter. Other brands vary slightly but will also fit in the ring. 

Erva's SDC Series pot rings feature a heavy duty clamp with a large turning palm handle - to easily fasten the clamp securely to any railing up tp 3-3/4" thick without any tools. Erva pot rings are all built to an exacting standard with extra heavy duty components and are guaranteed not to sag under the weight of a fully hydrated pot.

The sturdy ring is made with 5/16" wire. The clamp is made from 7 Gage steel, 2" wide. Powdercoated back. The clamp features reinforcing ribs which are embossed into the material using 80 tons of pressure. You will not find a stronger clamp. Replacement parts are always available on our website.

Made in USA with all American made materials.