Bidding Specifications
For
Grund Marking Systems
SPM 102 Series Highlighter Snap Ring

Introduction 
The following paragraphs are bidding specifications for Underhill Grund Marking System SPM 102 Highlighter Snap Ring series.

Separate bidding specifications for engraved caps, disc markers, snap-in markers or valve/universal markers can be found on the Underhill’s Grund Marking System web pages.

The SPM 102 highlighter snap ring series is made to fit a wide variety of Rain Bird golf series sprinkler heads noted in the table below. 

SPM Series	Manufacturer	Models	
SPM 102	Rain Birds Series	E900, E950, E700, E750, E500, E550, 700, 751	

The number of snap ring colors can be recorded in the Underhill Excel template found on this web link: 
http://underhill.us/markets/golf/marking-systems/207-sprinkler-head#forms

Materials
The SPM 102 series markers are made from Delrin w/ UV inhibitors in the specified color.   The high strength, colored snap-ring meets the same thickness and other dimensions as the OEM snap rings made by Rain Bird.   

The SPM 102 series represents a colored or highlighted snap-ring only and not the internal cap commonly found under the SPM 107 series.  

Up to three colors (yellow, white or purple) of snap-rings can be specified.  Verify the corresponding color combinations w/ Underhill’s website, http://underhill.us/markets/golf/marking-systems/207-sprinkler-head#models.

Installation 
Using an Rain Bird golf head service tool or Underhill’s Rain Bird Superkey and/or the universal Superkey XL, remove the OEM snap ring.   

Replace the snap ring with the SPM 102 snap ring and confirm it has locked into place.  For installation instructions of the yardage marker, locate the installation instructions for the SPM 107 series specific to the Rain Bird golf sprinkler make and model. 

The Grund Marking System , SPM 102, Highlighter Snap Ring is manufactured and distributed by Underhill International Corporation, Mission Viejo, CA.  

End of Specification