Learning Room

Octagon, round, or square: the shape matches your floor, not your drain.

All three perform identically below the lid. The shape is chosen to fit the finish around it.

The Real Difference

The shape is about what's around the drain, not what's inside it.

Octagon, Round, and Square catch basin bodies share the same internals and hygienic standard — the shape is chosen to match what's finishing the floor around it, so the transition sits clean.

Grade Comparison

Where the difference actually shows up.

OctagonDELC Signature Series profile, best for polyurethane coatings
RoundCircular body, best for polished concrete floors
SquareBest for tiled floors
When 316L Earns Its Cost

Four conditions where the upgrade is worth it.

1

Polyurethane or HygieniCrete floor — Octagon is our Signature Series profile

2

Polished concrete floor — Round sits cleanest in a circular finish

3

Tiled floor — Square lines up naturally with grout lines

4

Not sure yet — tell us the floor finish and we'll match it

Our Position

We match the shape to your floor finish — it's not a hygiene decision.

None of the three shapes outperforms the others on drainage or cleanability. Pick based on what the floor around it looks like, and we'll confirm the fit before it ships.

Octagon
Signature Series, polyurethane coatings
Round
Polished concrete floors
Square
Tiled floors
Not Sure Which?
Tell us your floor finish
Not Sure Yet?

Tell us what the floor around it looks like.

Coating, polished concrete, or tile — send us the finish and we'll confirm the shape that fits cleanest.