NEW Reproduction 10 Pack of Mufflers for Briggs & Stratton Gas Engine. Replaces Part Number 290933. Fits Models 14, 19 , 23 and others with 1 inch pipe threads. Looks and works good on Model B, K , R, Q , WA, Z and ZZ engines. Made to Look and work exactly like originals. Heavier duty Material. Painted with High Temperature Paint. Individually Boxed.