Plastic Storage Hatch Lids

I have been looking at some mods and noticed some are with a purchased plastic lid that you place over your cut out and you have a hatch lid. Where can you purchase these lids in differant sizes.

I just ordered 2 of these Tempress hatches. I've heard good things about them and they come in different sizes. Search "hatch" on cabelas.com
Model number is just like the Jon boats. It's the size of the hatch. I bought Tempress 1317 which is 13"x17" and installs into a cutout of 10 5/8" x 14 1/2"

https://www.cabelas.com/product/Tempress174-1317-Access-Hatch-with-Cam-Latch/737552.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3DHatch%26x%3D0%26y%3D0%26WTz_l%3DHeader%253BSearch-All%2BProducts&Ntt=Hatch&WTz_l=Header%3BSearch-All+Products

there's a ton of them in ebay. many sizes and shapes, just search "boat hatch".

I got my tempress hatch from greatlakesskipper.com. I had to trim the sort and the cuttput but works great