Springfield's 1300750-R1 Flat-Side Aluminum Base uses a below-the-deck mount, requiring a 3.75" hole in the deck. It is designed for any 2-3/8" Plug-in Post, sold separately. Rust-resistant satin finish.
9" x 7" right flat side base
Flat side is on the same side as the notch
High-strength aluminum construction with rust-resistant satin finish
Below-the-deck mount, requires a 3.75" hole
Use with any 2-3/8" Plug-in post (sold separately)