You will find that the majority of water tank lid manufacturers use a material called GRP (Fibreglass) for their water tank lids. GRP has been proven to delaminate and become brittle over time which results in lids being easily damaged or cracked, this necessitates premature replacement at an additional cost to your business.
We manufacture our water tank lids using a material called Rigid Polypropylene which is virtually unbreakable and is well known for its excellent impact resistance. All our water tank lids and covers comply with health and safety guidelines, and are supplied with a Lid Breather, seals and fixings. Our water tank covers are also internally insulated, providing excellent thermal insulation properties.