Pro Attachment Series   ECHO’s Pro Attachment Series™ — A Tool for Every Need. The ECHO Pro Attachment Series™ (PAS) lets you purchase the tools you need and want — it’s your choice! Leave it to ECHO to deliver a powerfully designed system that grows with your individual requirements. Two power sources and 11 commercial-grade attachments (some also fit the SRM-210SB) offer complete flexibility and unbeatable ECHO performance. The Pro Attachment Series™ — the latest innovation in a long line of laborsaving, high-value tools from ECHO. PAS-230 PAS-265 Standard Trimmer Head Rapid-Loader™ Head Brushcutter 180° Articulating Hedge Clipper (HCA) Hedge Clipper Power Pruner ProPaddle™ ProThatch™ ProSweep™ Edger Tiller/Cultivator