After seeing little peepholes at your local hardware store I found this item at Revain. When I got the new viewer I knew I had made the right choice because it's bigger and has a wider field of view and a strong lens cap. Since I was installing on a metal door, I also purchased the correct size hole saw that was offered to the viewer. This made the installation very easy. I would also suggest putting a small bead of clear silicone around the outer flange to keep water out. Really no instructions with the viewer, but really self-explanatory. There is a DIY on You Tube if you need how to install it.
Heavy Duty 12Ft Double Sliding Barn Door Hardware Kit - Smooth & Quiet Operation For 36" Wide Doors - J Shape Hanger Black | SMARTSTANDARD.
33 Review
ZEKOO Bypass Sliding Barn Door Hardware Kit For Double Doors, Single Track, Flat Track Roller, One-Piece Rail - Available In 4FT To 12FT Lengths, Perfect For Low Ceilings (6FT Single Track Bypass)
34 Review
Industrial Bigwheel Hangers Sliding Barn Door Kit - 6.6Ft Heavy Duty, 4-18FT Black Hardware, Smooth & Quiet Operation, Easy To Install (Fits 36"-40")
40 Review
ZEKOO 2.5-8FT Customized Style Interior Super Mini Sliding Barn Door Hardware Black Roller Rails Closet Cupboard Storage Cabinet Kit (2.5FT, Single Door Kit)
34 Review
Eco-Friendly Solarez UV Cure Grain Filler & Sealer - Perfect For Fine Furniture, Guitars, Pool Cues And DIY Woodworking!
10 Review
Hemway Glitter Grout Tile Additive: Sand Gold Sparkle For Your Bathroom, Kitchen And Wet Room Tiles - Easy To Use And Temperature Resistant!
10 Review
Gorilla Waterproof Patch & Seal Liquid - Black 16Oz - Ultimate Solution For Quick Fixes (Pack Of 1)
39 Review
π³ Efficient Drip-less Wood Glue Dispenser, 16 Oz Bottle
8 Review