DeWitt Basic Pond Netting
This lightweight economy netting has 1/2" mesh and is very resistant to tearing or ripping.  It is a durable netting for less money. 
AGPN710 7' x 10' Basic Pond Netting by DeWitt $ 6.95
AGPN1414 14' x 14' Basic Pond Netting by DeWitt $ 12.95
AGPN2828 28' x 28' Basic Pond Netting by DeWitt $ 74.95