Your search for "SFP-1G" revealed the following:
Cisco DWDM-SFP-3112 1GB BASE-DWDM 1531.12nm SMF LC SFP Transceiver
SKU: NSB-6008
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper EX-SFP-GE10KT14R13 1GB BASE-BX SMF SFP Transceiver
SKU: NSN-5921
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper RX-10KM-SFP 1GB BASE-LX 1310nm SMF SFP Transceiver
SKU: NSN-6598
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco CWDM-SFP-1590 1GB CWDM 1590nm 1/2Gb FC SFP Transceiver
SKU: NSH-3902
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Cisco CBS350-24S-4G-NA 24x 1GB SFP 2x 1GB Combo 2x 1GB SFP Switch
SKU: NSB-7803
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper ACX500-AC 2x 1GB SFP 4x 1GB Combo Junos OS Router
SKU: NSB-3491
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco IE-5000-12S12P-10G 12x 1GB RJ45 12x 1GB SFP 4x 10GB SFP+ Switch
SKU: NSN-2334
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX-SFP-1GE-SX 10GB BASE-SX 850nm MMF SFP+ Transceiver
SKU: NSH-9319
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Finisar FCLF-8520-3 1GB BASE-T RJ45 Optical SFP Transceiver
SKU: NSB-7107
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper EX-SFP-GE10KT15R13 1GB BASE-BX TX 1490nm/RX 1550nm MMF SFP Transceiver
SKU: NSH-6956
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days