*PLUMBERSSTOCK EXPERT* responded:
Thank you for your interest in the Geberit 131.144.SF.1! If I understand your question correctly, the depth or measurement from front to back of this Glass Monolith is 4-3/8”. Please refer to the specification sheet if you have more questions. Always remember to click Add to Cart to confirm your order, enter your zipcode and you’ll be all set! For availability inquiries, or to better understand lead and ship times, please contact one of our knowledgeable customer service representatives @ 435-868-4020 or through e-mail @ email@example.com.