Gas Meter Index Covers & Tamper Seals, built to protect and perform.
U.S. manufacturer of gas meter index covers, Snap Seal™ tamper systems, meter screws, paint covers, and gas fittings — with same or next-day shipping.
"You can't steal from Snap Seal™"
Shop by Meter Brand
Find your meter type
American / Honeywell
Index covers and tamper products for American AL-175, AL-425, and Honeywell meter families.
Rockwell / Xylem
Full line of index covers, screws, and tamper kits for Rockwell and Xylem meters.
Sprague / Itron
Snap Seal™ compatible index covers and accessories for Sprague and Itron meter types.
Gas Meter Products
Gas meter parts we manufacture
Carolina Moldings molds and stocks a full line of gas meter parts in Charlotte, North Carolina: replacement index covers (also called index boxes), the Snap Seal™ tamper system of security seals and plugs, meter screws in brass and stainless, snap-on paint covers, and shop supplies like gaskets, caps, and connection plugs. Everything is made in the USA and ships same or next day.
By meter line
- American / Honeywellindex covers & parts
Fits American AL-175, AL-425, AL-800, 35B–500B, and Honeywell 40G / 100G.
- Rockwell / Xylemindex covers & parts
Fits Rockwell / Xylem 150, 415, R-750–R5000, and 40G / 100G.
- Sprague / Itronindex covers & parts
Fits Sprague 175–400 and Itron 40G / 100G endpoints.
By part type
- Snap Seal™ Tamper Seals, Plugs & Meter Locks
Tamper-evident seals & locks that make theft obvious.
- Gas Meter Index Covers & Index Boxes
Replacement index covers for every major meter line.
- Gas Meter Screws — Index, Bonnet & Tamper-Proof
Index, bonnet & tamper-proof fasteners.
- Gas Meter Paint Covers & Register Masks
Keep registers clean during field painting.
- Gas Meter Gaskets, Caps, Plugs & Shop Supplies
Gaskets, caps, plugs & test fittings.
The Tamper System
You can't steal
from Snap Seal™
Our signature snap-on seal locks over the meter connection and can't come off without visibly breaking. Theft becomes obvious, and your field crews get a fast, tool-free install. Color-coded and sequentially numbered for inventory control.
Explore the Tamper SystemWhy Carolina Moldings
The standard every utility deserves
Family Owned
Three generations of family ownership means consistent quality and personal accountability.
Quality is Key
Every product is engineered to tight tolerances and inspected before it leaves our facility.
Trust is Our Priority
Utilities rely on us for products that perform every time — no surprises, no substitutions.
Speedy Delivery
Same-day and next-day shipping on most stocked items so your crews are never waiting.
Made in the USA
Every Carolina Moldings product is manufactured domestically — supporting American workers.
Hand-Inspected Quality
Human eyes on every order before it ships — because automated inspection misses what matters.
Custom Manufacturing
Don't see your part? We'll build it.
If we don't already stock what you need, we're happy to design and mold a piece to fit. Bring us a sample or a spec — we're prepared for the future.