Response to Hi DB, American Products was acquired by Pentair quite a few years back. Here is a link to the view Parts Breakdown for The Amerlite you will need key #4 which can be found here Amerilite Locking Screw and Gum Washer sometimes the threaded port that the locking screw screws into gets stripped and if this is the case you will need one of these Pool Light Wedges

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