Filter nuts are fasteners that keep your wet / dry vacuum's filter attached to your filter plate. Without this vital piece of equipment, you're at risk of causing damage to or reducing the effectiveness of your cleaning hardware. The same goes for your drain cap. Without that, you could cause as much as a mess as you clean up. Don't let your hard work go to waste, pick up these OEM replacement parts from Ridgid. Their tough construction will prove reliable, and their easy installation lets you keep your equipment running at full efficiency without turning to professional repairs. These are compatible with pre-2010 Ridgid vacuums that have threaded studs and onboard drains. Check the specs, and you'll know these are for you if they match your Ridgid vacuum! You never know when your fasteners might blow, but Ridgid has your back.