If distribution box exceeds the perimeter range and is over 300mm in height, it will be POA.
Also available in 10mm rubber. For cost, add 20% to 5mm price.
Example
Example Box Size: 350 x 350 - 3 x 250 Dia Spigots
Formula: 350 + 350 + 350 + 350 = 1400
Perimeter Range: 1201 - 1800
