POOL WEIR REPLACEMENT SQUARE WEIR DECK LID COLLINS MK11 365MM Description The Pool Weir Replacement Square Weir Deck Lid Collins MK2 365mm is a replacement skimmer lid designed specifically for Collins MK2 fibreglass pool weirs. This deck lid fits over the square weir collar while accommodating the internal round vacuum lid and round tube-style skimmer opening used in the Collins MK2 design. Manufactured from fibreglass, this weir deck lid is built to handle regular exposure to pool chemicals, sunlight, and outdoor conditions common in South Africa. It features a clean, functional finish that sits securely over the weir opening, helping prevent debris from entering the skimmer while still allowing easy access for maintenance. This lid includes two lifting holes, allowing the lid to be removed easily without tools when cleaning or servicing the weir basket. It is intended for fibreglass pool installations where the weir collar is square, but the internal skimmer throat and vacuum lid remain round. This product is suitable for pool owners, installers, and contractors looking for a correct-fit replacement lid for Collins MK2 fibreglass weirs and should not be used on marbelite or concrete pool structures. FAQs Is this weir deck lid compatible with marbelite or concrete pools?No. This lid is NOT compatible with marbelite or concrete pools. For fibreglass shells or fibreglass linings only. Which weir does this lid fit?It fits the Collins MK2 fibreglass weir that uses a square collar with a round internal vacuum lid and round skimmer tube opening. What material is the lid made from?The lid is manufactured from fibreglass for durability in outdoor pool environments. Does the lid include a handle?The lid does not include a raised handle but has two lifting holes for easy removal during maintenance. Is this suitable for DIY installation?Yes. The lid can be fitted by homeowners or pool technicians as it simply seats onto the existing weir collar. Is the lid resistant to pool chemicals and sunlight?Yes. Fibreglass construction provides resistance to chlorine exposure and UV conditions typical in South African pools.  Key Features & Benefits Designed specifically for Collins MK2 fibreglass weirs Square deck lid with internal compatibility for round vacuum lids Fibreglass construction for outdoor durability Two lifting holes for easy removal Helps prevent debris from entering the skimmer system Suitable for residential fibreglass swimming pools Technical Specifications Product Type: Pool weir deck lid / skimmer lid Brand Compatibility: Collins MK2 Material: Fibreglass Shape: Square Size: 365mm Finish: Smooth fibreglass finish Pool Type Compatibility: Fibreglass pools only Internal Weir Design: Round vacuum lid with round skimmer tube Durability: Resistant to chlorine and UV exposure Installation Notes: Drops onto existing square weir collar Compatibility Notice: NOT compatible with marbelite or concrete pools Conclusion The Collins MK2 365mm Square Weir Deck Lid is a practical replacement solution for fibreglass pool owners needing a correct-fit skimmer cover. Its fibreglass construction, simple lifting access, and compatibility with the Collins MK2 weir system make it a reliable choice for maintaining proper skimmer function and pool