0800 100 337 sales@bmh.co.nz


spa covers

BMH spa cover – 20mm spa foam

BMH 20mm spa foam covers keep the heat in, particularly during winter, saving energy, money and they keep your hot tub clean when it’s not in use. Yet, not all foam spa pool covers are alike; there can be critical differences in their performance. Our 20mm closed-cell polyethylene foam is lightweight and durable, and our foam spa covers will give you years of trouble-free use.

spa pool cover

how 20mm spa foam covers work

The spa foam floats on the water, trapping heat by insulating the water surface.


Can be used on both residential and commercial spas.
Due to their durability, our foam spa pool covers are ideal for commercial spas in hotels, motels, gyms and recreation centres etc.


Spa foam covers are made from a 20mm thick sheet of closed cell polyethylene foam.

spa cover care

Never shock dose the spa while the cover is on.
Never dose the spa with algaecides while the cover remains on.
When cleaning the spa cover, use mild soapy water and rinse with fresh water.

where to buy our 20mm spa foam covers

BMH distributes our spa pool covers through pool retailers and pool builders nationwide.
Ask for a BMH spa pool cover by name.
Phone BMH if you need help locating your nearest agent.

spa pool covers

FAQs on our spa  foam covers

what is the life expectancy of a BMH 20mm spa foam cover?

Approximately 6 years, subject to customer care.

what colours are available?

Sky blue, and grey.

is there a maximum size for a 20mm spa foam?

Yes, we make covers from 2000 x 1000mm sheets. Therefore, 20mm spa foam is suited to spas with a waterline dimension of less than 2000mm * 2000mm using two sheets. A third sheet can extend this to 3000mm * 2000mm.

are there any spa shapes that can’t be covered?

To date, no.

how safe are the BMH spa foam covers?

Spa foam covers provide no child safety protection.


do I need a cover on an indoor hot tub?

Yes, spa covers significantly reduce indoor condensation, as well as preventing heat loss.

foam cover warranty

BMH Pools offers a 3-year warranty covering faulty material and workmanship on return to factory basis.
For a printable warranty, use the button below or go to our pool cover brochures page.

spa foam cover prices

Spa foam 20mm covers up to 2000mm x 2000mm $555.00

Price includes GST.
Prices exclude freight and installation.

BMH Pool and Spa Covers

get in touch with the  BMH team

get in touch
with the 
BMH team