NDS 3″ Gray Mini Channel Kit with TDS Bronze Age Cathedral Grate – BoOF


Kit includes:
NDS 500 Channel (1) for every 6ft section
NDS 547 End cap (1)
NDS 546 End outlet (1)
NDS 548 Coupler (1) for each channel over 6ft
TDS Bronze Age Cathedral Ductile Iron BoOF BA-CATH-0312-BF
TDS 529B Grate hold-down (2 per grate)

Large Project? Request Quote.


NDS® Mini Channel linear drain is a non-sloped system built for light traffic applications such as pools, patios, and walkways. The channel is UV-protected and manufactured from durable lightweight polyolefin plastic. This kit includes a heelproof and ADA-compliant TDS Bronze Age™ cast iron grate in the Cathedral pattern with a BoOF (Baked-on Oil Finish)

Available online in 6, 12, 18, and 24 foot kits; custom system lengths are available. Request a Quote.

The 3ft Extension and the 6ft Extension kits are intended to be an extension to the standard length kits and do not include the end cap/outlet. Other accessories are to be purchased separately if intended to be a stand-alone kit.

This system has a Load Class rating of A but can be rated for a B Load Class if properly installed; see the specification sheet for details.

Specification Sheet for BA-CATH-0312-BFmini-channel-side-spec-profile

Mini Channel Installation Guide

Each kit includes:

  • Channels (in 3′ or 6′ lengths)
  • One End Cap
  • One Outlet (compatible with SCH 40 pipe)
  • Couplers (1 for each joint)
  • Grates
  • Hold Down Screws (1pkg per kit – 64 pcs)

Please note that all raw cast-iron grates begin to naturally rust with exposure to any form of moisture and will appear bright orange before settling to brown. With the Baked-on Oil Finish, the grates will still minutely rust, but not to the same extreme as a raw cast iron grate. 

Please allow an additional 2 weeks for delivery of BoOF products.

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Commercial, Greenhouse, Municipal, Patio, Residential

Finish Type


Grate Pattern

Load Class

Load Class A, Load Class B

Product Type

Drainage Kit


Mini Channel


Bronze Age, NDS, TDS

Kit Length

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Channel Material


Channel Type


Grate Finish


Grate Material

Grate Load Class

Grate Width

3 inch

CSI Code 22 00 00, 22 14 00, 22 14 26, 22 14 26.19, 33 30 00, 33 40 00, 33 44 00, 33 44 13, 33 44 16, 33 46 13