Net Ball x1 OR Net Ball x3 if Water/Bug Surskit is Water/Bug...so.....? :D
According to Serebii's forum, the ball hits a x2 cap, so no, you can't stack the effect for a x3 catch rate.
http://www.serebiiforums.com/showthread.php?p=8015073
How to change your username How to add a user avatar Why was my post hidden? Question etiquette Flags vs Downvotes Anime FAQ Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.