Unit holds two standard-core toilet tissue rolls up to 5-1/4" (135mm) diameter (1800 sheets)

it can also accommodate narrower towels

"text": "The ASI 0210-41 holds 400 standard C-fold or 525 standard multi-fold paper towels

so you can feel comfortable using it for sensitive groups (like for children in schools and in medical institutions)

For installation of the B-290 1830

ASI 645210A-6 Simplicity - Auto Paper Towel Dispenser - Roll - Battery - Semi-Recessed Size-24" x 60" Unit holds two standard-core toiletSeamless construction, crisp lines and minimalistic design Concealed multi staked hinge 3 16" diameter [5] Semi Recessed w 6 collar Automatic Battery Operated "No Touch" Roll Towels up to 800 ft. Length Proximity sensing no touch recessed unit dispenses an owner adjustable length per cycle from 8 (205 mm) wide, 800 ft. (244 m) long rolls. Fabricated of 20 gauge stainless steel with satin finish. Powered by 4 D size batteries (not included). Semi