This part fits on 10" frames. This is a new style of joint which accommodates an upgraded 1 inch rail (or track). It measures 10" wide by 4" 7/8" deep.
THIS PART ONLY WORKS WITH 1" RAILS (true width is 7/8"). If you buy this part, do NOT purchase 5/8" rails. If you are not certain, measure the rails on your pool. If they are 7/8", they are considered 1" rails. If this part is out of stock, you can purchase part number 2192, but you will need to purchase 5/8" rails to fit with part #2192.
The part shown in the pictures is actually part # 2191. This is a suitable replacement for part# 2191 because it will work with the same size rails.
