Mansfield 135-3173 Alto Elongated Two-Piece Toilet – 1.28 GPF

Mansfield 135-3173 Alto Elongated Two-Piece Toilet – 1.28 GPF

Brand: Mansfield Plumbing | SKU: 135-3173

Product Overview

The Mansfield 135-3173 Alto is a two-piece toilet designed for a standard 12-inch rough-in. Its elongated bowl gives buyers a clear choice based on bathroom space and seating preference, while the 1.28 GPF flush rate balances everyday performance with the water-use level specified for this configuration.

A glazed 2-inch trapway supports waste movement, and Mansfield’s three-point cushioned tank-to-bowl connection is designed to help align the tank and maintain a secure connection during installation. The toilet is supplied without a seat or water-supply line, so plan for those separately. Before ordering, measure the rough-in from the finished wall to the center of the closet flange and confirm that 12 inches is appropriate for the installation.

Key Features

• Elongated bowl
• 1.28 GPF flush rate
• 2 in. glazed trapway
• Three-point cushioned tank-to-bowl connection
• 12 in. rough-in
• Seat and supply line not included

Common Uses

Residential bathroom replacements, remodels and new installations requiring a two-piece Mansfield Alto toilet with a 12-inch rough-in.

Technical Specifications

• Configuration: Two-piece toilet
• Bowl: Elongated
• Water use: 1.28 GPF
• Water surface: 9 x 10 in.
• Trapway: 2 in. glazed
• Trap seal: 2-1/2 in.
• Rough-in: 12 in.
• Water pressure range: 20–80 PSI
• MaP rating: 600 grams

Compatibility & Installation Notes

Verify a 12-inch rough-in before ordering. Toilet seat and water-supply line are not included. Installation should follow Mansfield instructions and applicable plumbing requirements.

Frequently Asked Questions

Does the Mansfield 135-3173 include a toilet seat?

No. Mansfield lists the seat and water-supply connection separately.

What rough-in does it require?

This configuration is specified for a 12-inch rough-in.

Is the bowl round or elongated?

The 135-3173 uses a elongated bowl.

Why Buy From Big Frog Supply?

Choose the Mansfield 135-3173 Alto from Big Frog Supply when your bathroom calls for a elongated two-piece toilet with 1.28 GPF performance and a standard 12-inch rough-in.