Description
An 18-inch square mud frame assembly that replaces standard 18" square 2 x 2 grid cover systems with four 9" square outlet covers. It is designed for installations with 8-1/4" center-to-center screw spacing and fits existing frames 3/4" deep. The assembly is intended for swimming pool and spa suction outlets where a four-cover configuration is required.
Quick Answer: What Is the Aquastar 18MF101?
The Aquastar 18MF101 is a drain & suction cover: AquaStar MoFlow 18" x 18" Square Cover & Frame, Gunite Floor/Wall, VGBA, 126 to 1175 gpm, White. It is brand new, ships in 1-2 business days, and is backed by the Aquastar manufacturer warranty.
Aquastar 18MF101 Specifications
| Brand | Aquastar |
|---|---|
| Equipment Type | Drain & Suction Cover |
| Model Number | 18MF101 |
| Color | White |
| Pool Type | Gunite |
| Shape | Square |
| Size | 18" |
| UPC | 0883612080703 |
Key Features
- Complies with APSP/ANSI/ICC-16 2017 and NSF/ANSI/CAN 50 standards
- Made from UV-resistant engineered polymer for outdoor use
- Includes #316 stainless steel screws for corrosion resistance
- VGBA 2017 compliance button identifies compliant cover visually
- Replace drain cover every five years from installation date
How It Works
Drains, skimmers, return inlets, jets and plugs are the plumbing fittings where water leaves and returns to the pool or spa. Skimmers pull surface debris, main drains draw from the deep end, returns and jets push filtered water back, and plugs seal lines for winterizing or service. Suction covers must meet current VGB and ANSI/APSP-16 standards to prevent entrapment.
How to Choose the Right Drain & Suction Cover
- Match the pool type (gunite/concrete, vinyl liner, fiberglass) and the existing fitting brand and size.
- For suction covers, confirm the flow rating, mounting pattern and service life marked on the cover.
- For jets and returns, match thread size and insert style.
- For plugs, match pipe size and plug type (threaded, expansion or winterizing).
If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the 18MF101 is the right fit before you order.
Installation and Safety
Suction outlet covers must be installed exactly as certified, with the correct screws and sump. Replace any cover that is cracked, loose, missing screws or past its expiration date. Structural fittings in a pool shell should be installed by a qualified pool builder.
Maintenance Tips
- Inspect drain covers regularly and replace at the marked expiration date.
- Check skimmer baskets and weirs weekly.
- Lubricate O-rings on threaded fittings.
- Use winterizing plugs properly in freezing climates.
What's Included
This listing is for the Aquastar 18MF101 as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.
Built for Homeowners, Pool Pros and Property Managers
- Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
- Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
- Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.
White Paper
Frequently Asked Questions About the Aquastar 18MF101
Does my drain cover expire?
Yes. VGB-compliant covers are marked with a service life; replace them by that date or sooner if damaged.
How do I match a jet or return fitting?
Check the brand, thread size and insert style of the existing fitting.
Why is my skimmer not pulling well?
Check for a clogged basket, low water level, a stuck weir or a valve setting that favors the main drain.
Is this the genuine Aquastar part?
Yes. It is brand new Aquastar equipment (model 18MF101) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.
