Everything you need to setup a bowl or sink mold for casting, plus overflow, drain and finished trim components
Marshall Gruber supplies all necessary components for setting up lavatory bowl drain systems and overflow systems (shown in the diagram at right). We also supply a number of installation aids - such as bowl clips and others that are set into the matrix during casting to provide an integral bowl mounting system. These components are used to manufacture cultured marble or solid surface vanity bowls.
Categories include:
- Drain Components
- Overflow Components
- Bowl/Faucet Installation Products
Faucet Hole Rings
Our silicone-coated cardboard Faucet Hole Rings are a real time saver for manufacturers, since they provide a fast, easy way to create 1.25″ (3.2 cm) diameter faucet fixture holes in a vanity top. Faucet hole rings are positioned and set in place on the vanity mold to create holes in the finished product where the faucets will be installed, saving drilling time later. Installers need only to pop out holes prior to faucet installation. Available in five different heights to accommodate different thicknesses of marble. Sold in boxes of 1,000 (approximately).
Order Information
3/8″ (0.95cm) – #000016C
1/2″ (1.3cm) – #00001C
5/8″ (1.6cm) – #00002C
3/4″ (1.9cm) – #00003C
Bowl Clips
Bowl clips are used with the floating unit assembly for firmly attaching undermount bowls to marble vanity tops. The screw of the floating unit assembly fits through the slot of the bowl clip, resulting in a firm, solid attachment of undermount bowls to cultured marble vanity tops. Packaged in quantities of 100 or 1,000.
Order Information
Box of 100 – #000061
Box of 1000 – #00006
Floating Unit Assembly (FUA)
Known at “T-Nuts” to many, they are placed into the ungelled matrix. When the marble cures, they provide a solid anchor for attaching undermount bowls to marble vanity tops and bases to marble table tops. The paper tab on the “T-Nut” assembly prevents it from sinking too far into the matrix and also serves as a spacer for the proper positioning of the “T-Nut” when used with speedy plugs. It also serves as a spacer for the proper positioning of the FUA when used with speedy plugs. Available in quantities of 100 or 1000.
Order Information
FUA, Box of 1000 ASSEMBLED Kits – #00005
FUA, Box of 100 ASSEMBLED Kits – #000051
Overflow Tubing
Overflow tubing is used to create an overflow system in a cultured marble or solid surface vanity bowl. The components are installed prior to casting.
Oval Overflow Tubing
The Overflow Tubing connects directly to the polycollar at the drain end and to the overflow stem at the overflow outlet. The Overflow Pipe becomes a permanent part of the finished bowl. The Overflow Pipe connects directly to the oval polycollar at the drain end and to the overflow stem at the overflow outlet. In addition, it features an integral, calibrated scale that permits quick and accurate trimming to achieve a proper fit on any size and shape of bowl. Like the polycollar, the overflow tubing becomes a permanent part of the finished bowl. They are available in boxes of 100 and 500.
Round Plastic Tubing
Flexible, pliable 1/2” clear vinyl tubing is used to provide a germ-resistant permanent bowl overflow. Fits snuggly onto the round polycollar. Use with a round stem to create a clean outlet hole.
1/2” Round PVC Tubing – 100’ Roll – #001010
Polycollars
Polycollars are available either Trimmed, or Untrimmed. Trimmed polycollars have the top cut off, and untrimmed polycollars are not trimmed.
Polycollars are available either Trimmed, or Untrimmed. Trimmed polycollars have the top cut off, and untrimmed polycollars are not trimmed.
Round Overflow
No Overflow
Oval Overflow
Polydomes
Standard Marshall Gruber Polydomes define the drain outlet size and serve as a base for the polycollar. Bolt it into place and gelcoat before casting. Fits perfectly with Marshall Gruber Polycollars. Sold individually.
Order Information
Polydome, Each - #01130
Drain Boss
These durable, high quality machined aluminum drain boss assemblies eliminate the need for polydomes, captive nut assemblies and suction cup assemblies. They are highly recommended for use with modular vanities and floating bowls – especially when using Extrudable Tooling Wax such as GruberCare Ex-Wax Extrudable Tooling Wax.
Standard Drain Boss Assembly
- 1-9/16″ Diameter Drain Boss with 5/16″ Diameter Drilled Center Hole
- Bolt
- Washer
- Nut
Order Information
Standard Drain Boss – Ea – #191045
Hollow Core Drain Boss Assembly
This drain boss is an alternative to the standard Drain Boss shown above. This product utilizes the same 1-9/16″ diameter drain boss, but with a larger 1/2″ center drilled hole. This product also includes a slightly larger bolt with a drilled center “hollow core” that some cultured marble manufacturers prefer. This bolt is drilled all the way through the bolt, which serves two functions – it allows pressure to be equalized from the mold surface to the backside of the mold and allows the operator to blow air down into the mold cavity during demolding to assist in mold release.
- 1-9/16″ Diameter Drain Boss with 1/2″ Diameter Drilled Center Hole
- “Drilled core” 1/2″ Bolt (drilled through the entire length of the bolt)
- Lock Washer
- Nut
Hollow Drain Boss – Ea – #R-01132
Suction Cup Stem Assembly
The Suction Cup Stem Assembly is used to firmly attach the polydome, overflow components and floating bowl mold to a vanity top mold. Individual components may be ordered separately. Fits all sizes.
Order Information
11.5″ Stem Assembly – Ea – #011271
Stem Only 3/8 x 11-1/2” – Ea – #01127
Suction Cup – Ea – #01122
Wing Nut 3/8”-16 – Ea – #01123
3/8” Washer – Ea – #01123-1
Captive Nut Assembly
Order Information
Captive Nut Assembly – Ea – #01131
Order Information (Components)
Bolt – Ea – #011311
Jam Nut – Ea – #0113212
5/16″ Flat Washer – Per lb – #0113213
Lock Washer – Ea – #0113214
Reusable Overflow Stems
These reusable overflow stem products create a overflow hole in the casting of a cultured marble or solid surface lavatory vanity bowl, and are removed after casting.
Reusable Round Overflow Stem
Round Overflow Stem – Ea – #001015
Reusable Oval Overflow Stem
The oval stem was designed to fit Gruber’s Oval Overflow Pipe and Oval Beauty Rings. It is easily removed for reuse and eliminates costly refinishing of the overflow hole.
Oval Overflow Stem – Ea – #01124
Reusable Oval-To-Round Adapter Stem
The adaptor stem allows manufacturers to connect round overflow tubing to a mold with an oval overflow hole already cut.
Adaptor Stem – Ea – #001017
