This L5 twist lock won't fit into the weatherproof box. This was the deepest weatherproof box I could find. Any suggestion for an east fix?
46110

Hi mpz, what is the plug for? May be easiest to change the end out.

Go to a real electrical supply house. They'll have what you need.
If not there's always the internet.

I took the plug with me and went to a real electrical supply house and that's what they gave me, it a pool pump plug, 20 AMP, l5 twist, 115V pump.

Ouch. That's sad, especially since you had it with you.
Here: While-In-Use Covers | by Legrand (http://www.legrand.us/categories/weatherproofcoversboxes/covers/while-in-use.aspx)
Single Gang Deep While-In-Use Cover, Gray, WIUC10DGL | by Legrand (http://www.legrand.us/passandseymour/covers/while-in-use-covers/wiuc10dgl.aspx#.U5M35SiI1dc)
Gray/Gray 1 Gang Deep While-In-Use Cover at Menards (http://www.menards.com/main/electrical/rough-electrical/junction-boxes/weatherproof/gray-gray-1-gang-deep-while-in-use-cover/p-1753899-c-6432.htm)

I've never seen an in-use that would accommodate a twist-lock plug. Good luck.

I've never seen an in-use that would accommodate a twist-lock plug. Good luck.You must not do many pools then. They almost all do. The depth is usually the issue.

Thank you