For each porthole size, It has two suitable hull thickness models:

Standard Model: Suitable for hull thickness between 1.0~1.4 inch(26~36mm), for FRP/GRP/Wood boats.

Super Thin(ST) Model: Suitable for hull thickness between 0.24~0.63 inch(6~16mm), for Aluminum/Steel boat boats.

The porthole is made of 316L marine grade Stainless Steel. These portlights are stamped giving them a high-end quality appearance at an economical and affordable price. They are good for FRP, GRP, wooden, aluminum and steel boats.

Specification:

Brand: Galamarine

316L marine grade stainless steel, mirror polished

3 Overall sizes to choose from:

150×345mm (5.9×13.6 inch)

200×460mm (7.9×18.1 inch)

250x575mm (9.8X22.6 inch)

Acrylic Thickness: 3/8 inch or 10mm

Acrylic Color: Smoked

Mosquito screen is supplied.

The listing price does not include any destination duties/taxes/custom fees/etc that will be due when the product arrives at destination countries/regions. It is the customer's responsibility to pay for all custom duty/taxes/custom fees if any.