Malpassi Filter King Fuel Pressure Regulator, 85mm Glass Bowl and 8mm Unions:

These fuel pressure regulators have been part of a competition fuel system, and a common sight on motorsport vehicles over the past 25 years. The FILTER KING is a popular unit, regularly seen in the motorsport field because of its ability to regulate and filter fuel without restriction. So replace your fuel regulator and filter system with this tried and tested unit.
An essential upgrade if running twin carburettors and an electric fuel pump; these regulators will ensure a consistent flow of fuel at the correct pressure to suit your carbs.  Supplied with a mounting bracket, and suitable for 8mm fuel lines, these fully adjustable fuel pressure regulators make a great addition to any VW. 
Can be fitted with fuel pressure gauge.9
 available separately.