Collection: Sealant Funnels for filling tubeless bicycle tires

I saw this at a local shop. I immediately bought one and took it home. After I topped up all my wheels with it, I bought 3 more (two gifts and one extra for me.) It works. I have not tried it with Silca's NEW sealant. I used it with OrangeSeal Regular and Endurance. I like that one "funnel" is about 2 oz.

Nicer application for sealant into tire!

Simple and effective. No more mess.

We got a couple of these for the shop (Munroe Velo, Topsfield, MA) - they work so well i ordered one for home use as well. Thanks for a great and simple product!

This is just what I was looking for to make tire sealant a breeze!

I finally had a chance to use this funnel to replenish my sealant in my gravel bike wheels and I can't believe how painless this makes this usually unpleasant job. Just unscrewed the valve core, threaded on the funnel and poured in several ounces of sealant. Rotated the wheel up a few degrees and removed the funnel with absolutely no mess and reinstalled the core. Pumped it up and rinsed the funnel . No drips, spews or mess. If you don't own one of these you are working too hard. Great and simple product that just plain works. Buy one!

I like this little funnel. Makes putting in sealant a breeze.

Really way to use. I like it better than syringes and tubing. The one thing to “watch out” for is that some valve stems don’t have threads on the top for this to screw into. It’s still possible to use this (just hold it down on top of the valve, might make a tiny mess) but it isn’t quite as nice as when you can screw it on

compact, easy to use, easy to cary, simple. my only wish is that the funnel had visable label of how much volume it held for ease of knowing how much fluid to put into the tube.

This funnel solves all issues with applying sealant to your tubeless tires. It simply threads on to your valve stem. Even has a 3oz making inside the funnel. I would highly recommend this product to anyone that has tubeless tires. Great auctioned service and fast shipping.

I ordered one of these funnels as soon as I read the review on Bikepacking.com. I received it very quickly, and I have had the opportunity to use it once. It really is a great accessory. After my initial use, I already prefer this over my Stan’s sealant injector(older model). With proper use, I feel like this funnel should last a long time.
A couple funnel-fulls were all I needed to top-up my wheel. It worked flawlessly and with far less mess than an injector. I’ve found that with the injector I usually get some dripping when the syringe is removed. There was not a single drop of sealant dripped when using this funnel. The quick procedure was to remove the valve core/let air out of tire, thread on the funnel, shake and pour a near but not completely full funnel volume, let the funnel empty into the tire, slowly roll the tire a bit to get the sealant to finish “gurgling” into the tire. Again, I did this twice with no drips. I also feel that cleanup was very easy and wasted almost no sealant at all. There is very little sealant that remains adhered to the funnel, as opposed to what you’d normally have to wash from a syringe set-up. I highly recommend supporting Straz. Get yourself one of these!

Works like a charm, and makes topping off sealant virtually mess-free. I'll be reaching for this funnel for all sealant-adding tasks going forward.

Works just like I hope it would.

I was a little worried this wouldn't work with Fillmore valves, but it worked no problem. Was a bit slow for the sealant to fully drain into the tire, but with a bit of wiggling the tire around it all made it in.

Does what it was designed to do. A+