The SPH Collar saddle has a 45° angle with a short overlap. The curve of the saddle should be equal to the in column d of the article number mentioned duct sizes.
This fitting has a KEN-LOK rubber seal with double lip (Soft-Edge) at the end of one spigot, so it can slide easily into a Spiralo duct.
Lagedijkerweg 15
1742 NB Schagen
Netherlands
+31 224 296041
info@airspiralo.com