So that cap fits over the cone??
In a word,,,No. The 22xx has a 7/8" od tube, the 13xx has a 3/4"od tube. The valve for the 22xx is ~1/8 larger diameter. No promises, but you gents have me thinking of turning out a small run of flattop check valve ends for the 2100/2200/ 766. Is there any interest?