The WSK02 kit includes 2 sets of o-rings for replacing old or damaged OEM o-rings on your MSR Whisperlite and Whisperlite International camp stove. Use the second set as a spare on the trail. O-Rings are made of the same Buna-N (Nitrile) material used in the o-rings that come installed on your stove. The kit contains four different sizes: The largest size fits all MSR fuel bottle caps and old style fuel pumps. The medium size is a fuel line seal (under the small cap on the pump where the fuel line is inserted into the pump). The two small sizes are flow control valve seals. Note only one of the two small o-rings will be used. The age of your fuel pump will determine which size is required. The smallest size is for newer style pumps. Use a safety pin to aid in removal of old o-rings from your stove being careful not to skewer your finger. See listing pictures for o-ring locations highlighted in blue.

• Is Discontinued By Manufacturer ‏ : ‎ No
• Product Dimensions ‏ : ‎ 2.5 x 2 x 0.25 inches; 2.4 ounces
• Date First Available ‏ : ‎ April 21, 2017
• Manufacturer ‏ : ‎ Nomadic Engineering