Our vac drain cap is made of high-quality plastic materials to ensure a long service for you, and each our product is tested strictly and then shipped to you. 【Compatibility】Compatible with most Ridgid & Ebrmeiwo wet/dry vaccums, but please confirm that the model you need to buy matches our model before ordering, when you decide to replace the original shop vac parts with our shop vac drain cap 47922/73185, you can judge whether they meet the size you need based on their shape and models. 【Accurate Dimension】Original size 1.97'' ID, suitable for the machine, work better after installing 【High Quality】Made in special plastic materials, resistant to corrosion and aging, our craftsman shop vac cap is not easy to damage 【Easy to Install】No tools needed, just screw the drain cap onto drain opening on dry/wet vacuum, this could save time for you 【Intimate Service】If you have any questions about our vacuum replacement parts or if you have recieved it with any flaw, please contact us by email