GPA-S28-(XX)GL Ground Pyrex Adapter / #28 Socket & Seal Ring With Cap

The GPA-S28-(XX)GL Pyrex Adapter has a ground glass socket that fits a #28 ball. The adapter comes standard with a #22 screw joint cap. The cap is fitted with a seal ring to accommodate different tubing sizes. The seal ring is a silicone washer with a Teflon face.