Science › RUBBER STOPPERS - BOTTOM DIA. 15.5MM / TOP DIA. 19MM - SOLID #4 (PACK OF 10) Image 1 of 1 RUBBER STOPPERS - BOTTOM DIA. 15.5MM / TOP DIA. 19MM - SOLID #4 (PACK OF 10) $7.70 Code: LW5117-01 Add To Cart Added! Code: LW5117-01 Rubber stopper. Top x Length x Bottom: 19 × 18.5 × 15.5mm. You Might Also Like Quick View RUBBER STOPPERS - BOTTOM DIA. 27MM / TOP DIA. 33MM - SOLID #10 (PACK OF 10) $14.85 Quick View RUBBER STOPPER - BOTTOM DIA. 49MM / TOP DIA. 55MM - SOLID #19 $8.47 Quick View RUBBER STOPPERS - BOTTOM DIA. 34MM / TOP DIA. 39MM - SOLID #13 (PACK OF 10) $20.90 Quick View RUBBER STOPPER - BOTTOM DIA. 36MM / TOP DIA. 46MM - SOLID #16 $4.40 Quick View RUBBER STOPPERS - BOTTOM DIA. 36MM / TOP DIA. 41MM - SOLID #14 (PACK OF 10) $24.75