Four SIGMA light-duty boxes: a large black box, a purple box, a small round box and a box with a blue cover

The photos show a selection of the light-duty range. The item number sets the size, colors, cover and marking.

Item # S122012B-SBLOL-1 Questions and answers (9)

Light-Duty Meter Boxes

Polypropylene meter and valve boxes for pedestrian areas only: 6 and 10 in. round; 13 x 20, 14 x 19 and 17 x 30 in. rectangular. Pick the cover, colors and marking.

View price list (PDF)

ASTM C857 light duty: pedestrian areas, no vehicle traffic
Not recommended for installation in concrete or asphalt
SIGMA aims to ship stocked boxes within 48 hours
See all specifications

Comes as: Box and cover

Style: Overlapping

Colors and marking: Black box, black cover, WATER

Size: 13 x 20 in. (12 in. deep)

Made: Domestic or import

BABA certifiable on request. For origin paperwork on your project, ask your regional team.

Material: Polypropylene

UV-stabilized polypropylene; reader lids on CIR covers are cast iron.

Your distributor

SIGMA sells through waterworks distributors. Order with item # S122012B-SBLOL-1.

Quote from SIGMA

Job location

Sends your quote list to the right regional team.

Quantity

Download the light-duty price list

Need help on the job?

Call 800.999.2550 with the size, cover and marking you need.

All meter boxes and enclosures Spec sheets by series

Everything about this 13 x 20 in. item.

Details, specs, every size and the questions buyers ask. Open what you need.

Product detailsWhat it is, highlights and documents

About light-duty meter boxes

SIGMA's light-duty meter and valve boxes are UV-stabilized polypropylene, for pedestrian areas with no vehicle traffic. Each comes as a box with its cover, or as a cover or a box on its own.

Five sizes are on the April 2026 price list: 6 and 10 in. round, and 13 x 20, 14 x 19 and 17 x 30 in. rectangular. Covers overlap the rim or sit flush, can carry a cast iron reader or an AMR recess, and are marked WATER, SEWER, RECLAIM or ICV.

They are not for driveways, parking lots or any vehicle load.

Highlights

UV-stabilized polypropylene, ASTM C857 light duty
Covers marked WATER, SEWER, RECLAIM or ICV

Documents

SpecificationsBox and cover, 13 x 20 in.

Box and cover, 13 x 20 in.

Item number	S122012B-SBLOL-1
Comes as	Box and cover, Overlapping (Black box, black cover, WATER)
Size	13 x 20 in. (12 in. deep)
Made	Domestic or import
Material	Polypropylene
Load rating	ASTM C857 light duty: pedestrian, non-vehicular traffic only
Max. deflection
Weight	Not on the price list: see Weights below
Pallet quantity	52
Series	S122012
Price list	Light-Duty Meter and Valve Boxes, effective 4/27/26

Materials and build

Material	UV-stabilized polypropylene, boxes and covers
Box colors	With covers: black, purple or tan. As box only: black, purple, tan, green or blue. The item number sets the colors
Cover colors	Black, green, purple, blue and tan, marked WATER, SEWER, RECLAIM or ICV
Covers	Overlapping (over the box rim) or flushmount (recessed). Rectangular flushmount covers also come with a cast iron reader, an AMR recess or both; some 14 x 19 in. covers are listed as PR
Round boxes	Covers lock on to help prevent mower suction and blade damage: snap-lock on the 6 in. S6000 and twist-lock on the 10 in. S1000, per the series spec sheets. The S6000 box has a roller collar for the fit of the cover; the S1000 has a reinforced bottom edge to keep its shape
Pipe entry	Mouseholes and knockouts for the pipe; the S6000, S122012 and S210018 spec sheets list them as optional. Field modifications with any cutting tool
Depth	12 in. for the 13 x 20 and 14 x 19 in. boxes; 18 in. for the 17 x 30 in. box, and two of those fit together for 36 in., per the catalog
Extension	The price list also lists a 14 x 19 x 6 in. extension, S1015B-6-EXT. No spec sheet covers it: ask your regional team

Rating and use

Box and cover	Every light-duty box and cover is rated for pedestrian, non-vehicular traffic only. The spec sheets add that the actual load rating is determined by the box and cover combination
Concrete and asphalt	SIGMA does not recommend installing these boxes in concrete or asphalt
Vehicle loads	Not for driveways, parking lots or any vehicle traffic

Weights and dimensions

Weights	Estimates from the 2025 catalog: S6000 box 10 oz, cover 4 oz; S1000 box 1 lb 12 oz, cover 9.5 oz; S210012 box 6 lb 10 oz, cover 1 lb 12 oz; S1730 box 30 lb 15.3 oz. None given for the S122012
Dimensions	In each series spec sheet, under Documents. Weights and dimensions may vary slightly
S210018	In the November 2026 spec sheet and 2025 catalog (18 in. deep, S2102 covers), not on the April 2026 price list: ask your regional team

From the light-duty price list (effective 4/27/26), the series spec sheets (November 2026) and the March 2025 light-duty catalog.

Every size and item number3 sizes · item numbers

The sizes that come with the style, colors and marking picked above. Pick a size to load it.

Light-duty meter boxes: item numbers by size
Size	Item #
	S122012B-SBLOL-1
	S210012B-SBLOL-1
	S173018B-SBLOL-1

Item numbers from the light-duty price list, effective 4/27/26. Sizes are the price list's nominal names; exact dimensions are in each series spec sheet. Pallet quantities are under Specifications.

Questions and answers9 questions buyers ask about light-duty boxes

Where do I find the price?

On SIGMA's price lists. Where an item is on a posted list, the View price list button near the top of this page opens it, and every posted list is on the Price Lists page. SIGMA sells through waterworks distributors, and your distributor sets your price. For contract pricing, ask your regional team.

Can a light-duty box go in a driveway?

No. These boxes are rated ASTM C857 light duty, for pedestrian areas with no vehicle traffic, and SIGMA does not recommend installing them in concrete or asphalt. For a driveway or any vehicle load, ask your regional team what to use.

Do they ship from stock?

SIGMA's goal is to receive, process and ship stocked items within 48 hours. Common, everyday light-duty boxes are stocked, and if you use a box regularly, SIGMA can stock it for you. To check stock on an item, or for other colors, markings or large quantities, ask your regional team.

Overlapping or flushmount cover?

An overlapping cover sits over the rim of the box; a flushmount cover sits recessed, flush with the box. Rectangular flushmount covers also come with a cast iron reader, an AMR recess or both. On the price list, the round covers are listed as overlapping; the S6000 spec sheet calls its snap-lock cover a flush cover.

What do reader, AMR and PR mean?

A reader cover (CIR in the item number) is a flushmount cover fitted with a cast iron reader lid, as the S122012 and S210018 spec sheets show it. AMR (R4575) is a recess in the cover; its size differs by series, so check that series' spec sheet. For what the PR option on some 14 x 19 in. covers includes, ask your regional team.

Which marking goes with which color?

On the price list, most purple covers are marked RECLAIM; SEWER and ICV covers are green; WATER covers are mostly black, blue, green or tan. Where the price list leaves an item's marking or cover color unclear, its size note asks you to confirm it with your regional team.

How deep are the boxes?

The 13 x 20 and 14 x 19 in. boxes on the price list are listed at 12 in. deep, and the 17 x 30 in. box at 18 in. The S210018 spec sheet shows an 18 in. deep base that takes the same S2102 covers as the 14 x 19 in. box; it is not on the April 2026 price list, so ask your regional team. Round box dimensions are in their spec sheets; the 6 in. extension for the 14 x 19 in. box is under Specifications.

Can I cut the box for my pipe?

Yes. The boxes have mouseholes and knockouts for the pipe (the S6000, S122012 and S210018 spec sheets list them as optional), and the spec sheets say they can be modified in the field with any cutting tool.