The economical S1R Series is an angle framed access cover with 300 lb. psf (1464 kg psm) load rating. Single and double door units are ideal for casting into concrete top slabs directly above submersible pumps and debris baskets. These are mill finish doors with no lift assist. Please see the drawing page for standard features. This series can also be used for underground vaults that have provisions for drainage of incidental water. This Series should not be used if water intrusion is a determining factor. (See channel framed series W-R, W-S or W-C) If required the S-R Series can also be modified to fit existing openings.