Replacements
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MAHC-I Series 18" x 36" with Four 9" x 18" Retrofit Anti-Entrapment Suction Outlet Covers
Model # R1836xxx
VGB Certified
SPECIFICATIONS
Single -
Floor/Wall 2275 GPM at 2.0 fps
358 square inch opening
Sump Depth: 6'' Minimum
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Features
#316 Stainless steel screws, with brass inserts and brass concrete anchors
The MAHC-I Series retrofit grating is an expandable base system 18"x36"
Expansion kit R1836Exxx sold separately to increase drain size to retrofit 18" x 54", 18" x 72" with the system supporting any drain size larger the 18" x 36"
Trademarked VGB compliance button easily identifies VGB 2008 compliant cover from on deck and underwater
Manufactured from superior UV-resistant engineered polymer
Replace 9"x18" grates and support every ten years from the date of installation.
Product Dimensions
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Available Colors
R1836101 – White
Not Available – Black
R1836117 – Medium Gray
Not Available – Blue
Not Available – Dark Gray
Not Available – Tan
Replacements
The products shown below are direct replacements to the drain cover shown above. They are designed to fit in/over the existing mud frame. Please ensure that the replacement drain cover has an adequate volumetric flow rating to meet the application's highest flow potential and that the application meets the replacement drain cover's sump depth requirements. For more information about this, please click here.
Model # R1836xxx
Single -
Floor/Wall 2275 GPM at 2.0 fps
358 square inch opening
Sump Depth: 6'' Minimum
Product Specific FAQ
Click on a question to see the answer. If you do not see your question below scroll down to the bottom to send us your question.
Does the R1836xxx have an expiration date?
Our R1836xxx drain covers are manufactured with a strong PVC material and have a 10 year life-span.
Will the R1836xxx replace any other manufacturer drain covers?
The 1836xxx is intended for replacing 18'' x 36'' covers. It fits existing Lawson Aquatics 18'' x 32'' drain covers. Please refer to the R1836xxx instructions for more information.
When the cover for the R1836xxx expires, do I need to replace the mudframe/sump too?
The existing frame/sump must be in good condition, or else it must be replaced.
The drain cover's screws must securely fasten to the frame and have a minimum of three threads of engagement.
Where can I find the manufacturing date for the R1836xxx suction outlet cover?
The manufacture date is molded on to each drain cover, it is represented by a small dial that has the year in the center and an arrow pointing to the month.
Why do some areas require builders to split single-unblockable drain covers?
A small percentage of states and regions have not adopted the most recent codes and standards that allow the use of single-unblockable drains. Only one VGB unblockable drain is required to comply with the VGB Pool & Spa Safety Act, International Swimming Pool and Spa Code (ISPSC), ANSI/APSP/ICC-5 residential pool standard, and ANSI/APSP/ICC 7 (2006 & 2013), provided the flow rating engraved on the cover equals or exceeds the maximum flow rate of the specific system. California, Texas, Arizona and several other states have adopted the ISPSC as an optional building and remodeling code that allows single-unblockable installations.