All Erva pot rings were developed to fit Pennington Brand clay pots perfectly. A 6" Penningtion Pot fits perfectly into the PR6SDC 5.25" 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.