20pk +Towel Umarex / Hammerli 12 gauge barrel seals viton/FKM 0200187 with 100 indicating no indentation

with 100 indicating no indentation

6 Nitrile double lip spring double case bore coat

2-pack available with single use silicone lube for o-ring protection

Also available with single use lube and packages of various quantities

20pk +Towel Umarex / Hammerli 12 gauge barrel seals viton/FKM 0200187 with 100 indicating no indentationTowel is lint free microfiber; color will vary. Available either as a 10 pack or 20 pack. Also available with silicone grease instead of towel. Disclaimer: FKM and Viton are fluorocarbon. Viton is a name Brand commonly used to refer to FKM and is being used here only in an effort to explain and not as a brand name. There is no implication nor suggestion these are Viton branded. They are O Ring Depot branded.