Vaillant Ecotec Plus 837 VUW 376/5-5 R4 Gaskets, O-rings, Seals, and Washers are being used to give a seal to avoid a loss of air, gas, and water in most central heating boilers. Most of the O-rings, gaskets, seals, and washers are specific to a certain placement within the boiler and are extremely seldom interchangeable due to the specific size and thickness.

Brand Name	Vaillant
Colour	N/A
Material	N/A
Manufacturer Model No	20023300
Wear Type	N/A
Type	Gaskets, O-rings, Seals, and Washers
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Fits multiple appliances	Yes