Can anyone offer a good source for drop in water proof deck hatches that can replace those used on some kayaks and the Expedition Wherry?

I'm looking for an easier/faster, no rattle, lid release system than all the little clips. 

I guess I could build a different cover with more versatile hardware but a square or rectangular flush/nearly flush polypropylene with hinged lid or someother harwdare would be OK too.

Any recomendations for a cover product or tried and sucessful hardware for a retrofit?

Thank you.