SD20 SENSOR: OSCILLATING FORK PROCESS CONNECTION: 1” NPT SENSOR LENGTH: 4” SPRING ADJUSTOR FOR ACTUATOR (1-X-211) SPRING FOR ACTUATOR 1-X-211 SR1986-BIDF7ZZZ NA SR1986-BIDS7EAANA SRD960 SRD991-BHNS7EA4NY-V01L SRD-991 SRD991 BDNS6EA4N1-V07 SRD991-BDNS7EA4NR-V07 / LEXG-J1 / EBZG-H SRD991- BDNS7EA4NYV01L SRD991- BDNS7EA4NY-V07 SRD991 BDNT6EA4NR-V07 SRD991 BDQS6EA4N1-V07 4-20mA Feedback SRD991 BDQS6EA4NR-V07 - obsolete, replaced by SRD991-BDNS6EA4NR-V07;