2 Rolls 37 Inch Storm Door Bottom Replacement Insert Y Shaped Sweep Silicone Seal Adjustable Door Weather Stripping Bottom for Aluminum Storm Thresholds, Gray

I was not sure what I needed so I bought both these strips and the Frost King Y3750. (The original strips had a Y shape.) Turns out that the Frost King was a little too loose, and these were a little too tight in the slots. I got these in without too much trouble using soapy water as a lubricant; so they were not really too tight in the end. These seem to be heavy duty -- I expect that they will last. If they don't, I will update this review.

Very flexible rubber. More shaped like a wedge and less of a "T" like other products. I previously purchased Frost King brand and it lasted about three months before it failed at the thin intersection between the vertical and horizontal lines of the "T". This one seems to not have that weak point. However, this shape along with the softness and stickiness of the rubber made it somewhat difficult to slide into the channel on the bottom of the storm door. But... if it lasts, it will be worth the slightly harder installation.

Excellent Storm Door Bottom Replacement Insert Y Shaped Door Sweep made of Silicone.CAUTION: Check the cross sectional shape of the old strip. The shapes are like a Y, but actually a wedge. We have a Provia storm door requiring a short stubbier Y shape height for the wedge. The replacement is a taller wedge shape, having the same top width as the old strip. Even so, it was difficult to install, requiring the application of silicone lubricant in the slot. The fit was so tight that it took 30 minutes to pull the strip all the way across the bottom of the door, frequently becoming detached at the open end, and needing to start all over again. It was a struggle to install. Even so, it does work as a barrier

Noticed during a bad snow storm that the wind was pushing the snow in between my storm door and my front door. Saw that the rubber strip had peeled away after more than 15 years. Got these Replacements and they were easy to slide into the bottom of the door and they work perfectly. No more drafts at all.

I did not use these, they are very thin and light weight, they might be exactly right for someone else.

I like that this sale is a silicone sale not a rubber seal. It won’t get stiff in the winter time and it’ll flex easy and last longer. But you can use it on the bottom and still have a spare left. If you want to buy this brand, I’d recommend. The price was right.

I was using Andersen's standard t-shaped twin sweep for my storm door, and they were flimsy and would degrade quickly. Thanks to the shape of this sweep and the fact that it's one per track, I've had a much greater experience for the last month I've had these installed. The material seems way more durable than Andersen's. Will definitely repurchase when the time comes.

I bought one of these at Home Depot and ended up returning it because it was so thin and flimsy I doubt it would have lasted long. This one is made of silicone and much thicker and stiffer, I expect it'll last as long as the original which was over 20 years.